/*!
 * @license
 * Copyright 2019 Alfresco, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { Injectable } from '@angular/core';

export interface FeatureDescription {
    name: string;
    description: string;
}

export type FeaturesInfo<T> = {
    [key in keyof T]: FeatureDescription;
};

export interface Environment<T> {
    production: boolean;
    devTools: boolean;
    e2e: boolean;
    features: {
        [Property in keyof T]: boolean
    };
}

@Injectable()
export class EnvironmentService<T> {
    constructor(private config: Environment<T>, private featuresInfo: FeaturesInfo<T> ) {}

    isProduction() {
        return this.config.production;
    }

    isFeatureActive(feature: keyof T) {
        return this.config.features[feature];
    }

    describeFeatures() {
        return Object.keys(this.featuresInfo)
            .map<FeatureDescription & {active: boolean}>(key => ({
            active: this.config.features[key],
            ...this.featuresInfo[key]
        }));
    }
}
